http://www.telegraph.co.uk/news/ukne...ses-women.html
"A study tested men's and women's responses to the roaring engines of three luxury cars, in addition to an everyday vehicle.
The 40 participants listened to the recordings of a Maserati, a Lamborghini and a Ferrari, along with a Volkswagon Polo, before having a saliva specimen collected.
They believed loud noises, such as the revving of an engine, were likely to have an arousing effect on an individual's physiology.
By measuring levels of testosterone, a hormone which indicates arousal, the study was able to measure the car's stimulating effects.
The results found 100 per cent of female participants had a significant increase in testosterone secretion after listening to the Maserati, compared to only half for men.
Men fared better at the sound of a Lamborghini, with 60 per cent showing a testosterone increase.
Psychologist David Moxon, who conducted the study commissioned by motor insurer Hiscox, said: "We saw significant peaks, particularly in women.
"The roar of a luxury car engine does cause a primeval physiological response."
He added the sound of an average car engine actually led to a decreased level of testosterone. "
Basically..... get a loud exhaust for your car
